Lens-mounting for eyeglasses and spectacles.



0. F. WALL.

LENS MOUNTING FOR EYEGLASSES AND SPEOTAGLES. APPLIOATION FILED 17110.17, 1907.

Patented July 30, 1912.

COLUMBIA PLANOGRAPH co, WASHINGTON, D c.

CHARLES F. VJ ALL, OF PHILADELPHIA, PENNSYLVANIA.

LENS-MOUNTING FOB, EYEGLASSES AND SPECTACLES.

Specification of Letters Patent.

Patented July 30, 1912.

Application filed December 17, 1907. Serial No. 406,951.

To all whom it may concern:

Be it known that I, CHARLES F. WALL, citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Lens-Mountings for Eyeglasses and Spectacles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in lens mountings for eye glasses and spectacles.

In the construction of mountings commonly employed it is exceedingly diflicult to provide and maintain tight adjustments of the same in relation to the lens and nose guards, and in order to overcome the difficulties usually experienced recourse has been had to various forms of locking devices. Many of these locking devices, however, are impractical, while others cannot be employed by reason of the prohibitive cost of the same, and still others are too complicated and cumbersome to render their use desirable. Therefore, wearers of glasses are continually annoyed by loosening and separation of the parts of the lens mountings, and loss of parts is not infrequently experienced.

The present invention aims to provide a novel form of mounting the construction of which is such as to overcome the objections hereinbefore referred to; one that can be readily produced at minimum expense, and one that in use will present a neat appearance and efiectually serve to maintain the parts in adjusted position.

With these general objects in view, and others that will appear as the nature of the improvements is better understood, the invention consists substantially in the novel construction, combination and arrangement of parts hereinafter fully described, illus trated in the accompanying drawings, and pointed out in the appended claims.

In the drawings, Figure 1 is a perspective view of a lens mounting embodying the herein described invention, one lens only being illustrated in connection therewith. Fig.2 is a sectional view taken in a direction longitudinally of the post of the mounting. Fig 3 is a detail perspective view of the two-way box for the nose piece and guard. Fig. 4: is a similar View of the post. Fig. 5 a transverse sectional view of the lens and post taken at the locking screw connection, the dotted lines indicating the position of the screw prior to its engagement with the grooved strap of the post. Fig. 6 is a perspective view of another form of twoway box, the sections thereof being sepa rated. Fig. 7 is a transverse sectional view of the grooved strap of the post.

Referring in detail to the drawings, the numeral 1 designates the bridge of the herein described mounting which, in the present instance, is shown as the spring commonly found in eye glasses, and 2 designates a guard similar to that disclosed in my previous U. S. Patent No. 824,607, granted June 26, 1906. The guard 2 is provided with a' forwardly-extending shank 3, as clearly set forth in the patent referred to, and in order that the guard and the bridge may be held in assembled relation to each other a two-way box 4 is provided. The construction of this box is clearly shown in Fig. 3, and it will be observed that one side thereof is provided with vertically-extending flanges 5, while its opposite face is provided with horizontal flanges 6, the end of the bridge being received by the flanges 5, while the shank 3 of the guard is received by the flanges 6. By arranging the flanges 5 and 6 in the manner noted ways are provided at opposite sides of the box, which ways extend at right angles to each other. It will thus be seen that the flanges 5 and 6 serve respectively, to hold the end of the bridge and the end of the shank against movement, and when said parts are retained between said flanges the same are precluded from vibrating and always remain in fixed relation to the twoway box. The numeral 6 designates a post, which post is provided with a polygonal head 7, preferably rectangular in form, and said head fits between the flanges 5, so that it will be seen that when the post is so positioned the same is held in fixed relation to the two-way box, and the parts carried thereby. In order that the bridge 1, the guard 2, and the post 6 may be held upon the two-way box a fastening screw 8 is employed, said screw passing through the shank 3, the body of the box 4:, the end of the bridge 1, and engaging a threaded bore 9 formed in the post 6. It will thus be seen that when the screw 8 has been tightened to its fullest extent the parts referred to are held in fixed relation to each other, and in order that the fastening screw may be held against rotation said screw is provided with a polygonal head 10, which head is preferably rectangular in order to be engaged by the flanges 6. In this connection it will be understood that these flanges are sufficiently separated to permit rotation of the screw 8 for the purpose of bringing the parts together, and when the adjusted position of the parts has been obtained the flanges 6 are compressed upon the sides of the screw head 10, thus locking the screw against rotation.

The post 6' is provided with the usual wings 11 and perforated straps 12, the latter lying in parallel relation, and extending axially of the post, as is usual, and through the medium of a locking screw 13, which latter is fitted in the perforated straps 12, a lens 14 is held upon the post. Much difficulty, however, is usually experienced in retaining the locking screw 13 in the straps 12, and with a view to overcoming displacement of the screw 13 the shank thereof is divided, and the strap 12 which receives the end of the divided shank is provided with a transverse groove 15. When the screw 13 has been passed sufliciently through the straps 12 to bind the straps to the desired extent upon the lens, and thereby hold the latter rigidly upon the post, the sides of the shank are bent down into the groove 15, thus precluding the screw turning in the straps, and the extremities of said sides are trimmed off and polished down to the extent necessary for imparting a finished appearance, this being illustrated in Fig. 5. In this view, however, the dotted lines indicate the position of the locking screw 13 prior to bending down the sides thereof. By reason of the construction just described it is quite obvious that until the ends of the screw are fieed from engagement with the transverse groove 15 said screw is not capable of rotation, and, consequently, displacement of said screw is prevented. The lens, therefore, is held in fixed relation to the post 6, and by reason of the polygonal head 7 of said post, the latter, in turn, is held in the two-way box, and until the flanges 6 of said boxare released from engagement with the sides of the head 10 of the screw 8, it is impossible for any of the parts to either loosen, or to become detached.

, From the foregoing it will be seen that the present invention provides a most simple construction of mounting; it is one that can be produced at mlnlmum expense; 1t

presents a neat appearance, and effectually serves to maintain the parts in adjusted position, and while the mounting is illustrated as adapted for use in an eye glass structure, it is perfectly obvious that the same is clearly applicable for use with spectacles. Especially is this true of the straps 12 and the locking screw 13 used in connection therewith, which elements may be as advantageously employed in connection with spectacles as with eye glasses. While the element 13 has been illustrated and described as a screw, it is also obvious that this might be merely a pin the shank of which is divided similar to the divided shank of the screw as illustrated, the shank being bent into engagement with the transverse groove of the strap in a manner similar to the engagement of the screw therewith. Such construction would eliminate the necessity of threading the shank and one of the straps, and it would serve to efl'ectually hold the lens upon the post in precisely the same manner as is characteristic of the screw 13.

While in the construction of two-way box, illustrated and described, the channels or ways are indicated to be at right angles to each other, it is perfectly obvious that the angular arrangement of the ways in relation to each other may be changed, so that the invention is not limited to positioning the ways at right angles to each other.

In lieu of forming the two-way box as an integral structure it may be formed in two sections 16 and 1 as illustrated in Fig. 6, each of which is provided with flanges 18 and 19, which sections may be placed at right angles to each other, or at any other desired angle. These sections will, of course, be perforated, as at 20, for receiving the fastening screw 8, and when assembled the sectional structure will serve the same purpose as the integral structure.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

1. In a mounting of the class described, a box having polygonal ways in opposite faces thereof, a bridge seated in one of said ways, a post having a polygonal head also seated in said way and held by the sides of the way against rotation, a nose guard seated in the other way, and a fastening device provided with a polygonal head passing through the box and the bridge and engaging the post to clamp said parts together, the head of said fastening device being seated in the last-mentioned way and held by the sides thereof against rotation.

2. In a mounting of the class described, a box having polygonal ways in opposite faces thereof, said ways being arranged in angular relation to each other, a bridge seated in one of said ways, a post having a polygonal head also seated in said Way mentioned way and held by the sides thereand held by the sides of the Way against of against rotation.

rotation, a nose guard seated in the other In testimony whereof I affix my signature, Way, and a fastening device provided With in the presence of tWo Witnesses.

a polygonal head passing through the box CHARLES F. WALL.

' and the bridge and engaging the postto Witnesses:

clamp said parts together, the head of said VICTORIA V. BOWEN, fastening device being seated in the last- MAY M. RENNIE.

five cents each, by addressing the Commissioner of Patents.

Copies of this patent may be obtained for Washington, D. G. 

